CN1006609B - Molten iron purification processing method in the die cavity in the centrifugal casting - Google Patents
Molten iron purification processing method in the die cavity in the centrifugal castingInfo
- Publication number
- CN1006609B CN1006609B CN 86107044 CN86107044A CN1006609B CN 1006609 B CN1006609 B CN 1006609B CN 86107044 CN86107044 CN 86107044 CN 86107044 A CN86107044 A CN 86107044A CN 1006609 B CN1006609 B CN 1006609B
- Authority
- CN
- China
- Prior art keywords
- molten iron
- die cavity
- centrifugal casting
- processing method
- purification processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 16
- 238000009750 centrifugal casting Methods 0.000 title claims abstract description 9
- 238000000746 purification Methods 0.000 title claims abstract description 6
- 238000003672 processing method Methods 0.000 title claims abstract description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003818 cinder Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Sealing Of Jars (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
Molten iron purification processing method in the die cavity in the centrifugal casting, the invention discloses a kind of in the die cavity of centrifugal casting the dispenser sodium acid carbonate with the method for purifying molten iron the casting wasted product rate is significantly reduced.
Description
The present invention relates to the treatment technology of relevant molten iron purification in the centrifugal casting.
In the existing centrifugal casting casting process, dispenser powdery soda in the die cavity that is about to cast.Its reaction equation is as follows:
S in (S)-expression molten iron among FeS, the MnS etc.
Play C, the Si of deoxidier effect in (R)-expression molten iron
Above-mentioned reaction needs to carry out just accelerating them more than 870 ℃, therefore, lags behind the cast zero-time, is the gradually property sent out reaction.Soda dispenser amount is on the high side, pore is arranged in the foundry goods, slightly less, then in the foundry goods cinder hole is arranged.
Task of the present invention is to improve centrifugal casting purifying molten iron technology, reduces foundry goods internal cause anger, cinder hole as far as possible and scraps.
The present invention is achieved in that dispenser sodium acid carbonate in the die cavity that is about to cast.Following reaction takes place under the heat effect of high temperature liquid iron:
Sodium acid carbonate is finished above-mentioned decomposition reaction before 271 ℃, promptly produce the strong effect that escapes of bubble wink, forces naked all kinds of oxide impurities in molten iron of folder and band to gather in foundry goods interior surface layers district with the soda of fusion is floating, reacts immediately:
Thereby quickened the process that impurity in the molten iron floats on the foundry goods inner surface.
The present invention has eliminated the disadvantage that the soda response lag is brought, and the consumption of sodium acid carbonate is easy to grasp, and the casting wasted product rate obviously reduces.Secondly, use soda to go to, use sodium acid carbonate can save these aided processes toward needing baking, screening.
Further narration enforcement of the present invention now: before centrifugal casting, by one thousandth point six to the two. six dispenser sodium acid carbonates that pour into molten iron approximate weight in the die cavity, and when molten iron temperature is high, take off limit, capping when hanging down.Emphasis dispenser die cavity two-end part.Whether its consumption suitably also can directly be seen checks in out: foundry goods bore area slag bubble more and about 10 millimeters of φ or below, promptly suitable; When surpassing 15 millimeters of φ, then too much; Occur grit piece or slag bubble seldom, then very few.
Claims (2)
1, molten iron purification processing method in a kind of centrifugal casting die cavity, its feature one are dispenser sodium acid carbonates in the die cavity that is about to cast, the 2nd, and the dispenser amount of sodium acid carbonate is the one thousandth point 2/six to thousand. six of weight of molten iron in the chamber.
2, molten iron purification processing method according to claim 1 is characterized in that emphasis dispenser die cavity two-end part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86107044 CN1006609B (en) | 1986-10-09 | 1986-10-09 | Molten iron purification processing method in the die cavity in the centrifugal casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86107044 CN1006609B (en) | 1986-10-09 | 1986-10-09 | Molten iron purification processing method in the die cavity in the centrifugal casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86107044A CN86107044A (en) | 1987-06-24 |
| CN1006609B true CN1006609B (en) | 1990-01-31 |
Family
ID=4803447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86107044 Expired CN1006609B (en) | 1986-10-09 | 1986-10-09 | Molten iron purification processing method in the die cavity in the centrifugal casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1006609B (en) |
-
1986
- 1986-10-09 CN CN 86107044 patent/CN1006609B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN86107044A (en) | 1987-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) |